Deck 10: The Muscular System

Question 1

The names of the muscles can indicate all of the following, except

A) the angle of the muscle relative to the long axis of the body.
B) the action of the muscle.
C) the location of the muscle.
D) structural characteristics of the muscle.
E) collagen content of the muscle.

Answer 1

E

Question 2

Which of the following is not one of the forms of fascicle organization?

A) perpendicular
B) parallel
C) convergent
D) pennate
E) circular

Answer 2

A

Question 3

Each of the following terms is a descriptive term for a muscle's action, except

A) levator.
B) pronator.
C) tensor.
D) sartorius.
E) adductor.

Answer 3

D

Question 4

A muscle whose name ends in the suffix -glossus would be found within or attached to the

A) chin.
B) cheek.
C) jaw.
D) tongue.
E) lips.

Question 5

A skeletal muscle fiber can contract until it has shortened by about

A) 50 percent.
B) 20 percent.
C) 25 percent.
D) 40 percent.
E) 30 percent.

Question 6

The most common lever systems in the body are those that have the applied force between the fulcrum and the load. These are called ________ levers.

A) first-class
B) second-class
C) third-class
D) fourth-class
E) fifth-class

Question 7

In a ________ muscle, the fascicles are concentrically arranged around an opening.

A) convergent
B) parallel
C) straight
D) pennate
E) circular

Question 8

A muscle that controls the diameter of an opening is a ________ muscle

A) parallel
B) convergent
C) pennate
D) bipennate
E) circular

Question 9

Which of the following terms could be used with a muscle that is associated with the chin?

A) cleido
B) costalis
C) popliteus
D) nuchal
E) genio

Question 10

Muscles with fibers that run at an angle to the long axis of the body are called

A) lateralis.
B) transversus.
C) rectus.
D) oblique.
E) medialis.

Question 11

The leverage of the biceps brachii applies its force six times closer to the fulcrum (elbow joint) than the resistance. This means it will need to exert ________ kg of force to support a load of 6 kg.

A) 1
B) 6
C) 36
D) 7
E) can't say from this information

Question 12

Most of the skeletal muscles in the body are

A) convergent muscles.
B) parallel muscles.
C) straight muscles.
D) pennate muscles.
E) circular muscles.

Question 13

________ muscle fibers pull in different directions, permitting different actions depending on stimulation.

A) Convergent
B) Parallel
C) Straight
D) Pennate
E) Circular

Question 14

The bones, which serve as levers in the body, direct

A) the direction of movement.
B) the distance and speed of movement produced by a force.
C) the effective strength of a force.
D) all of the above
E) none of the above

Question 15

Skeletal muscles in which the fascicles form a common angle with the tendon are ________ muscles.

A) parallel
B) circular
C) pennate
D) convergent
E) divergent

Question 16

A fan-shaped muscle with a broad origin and fascicles that attach to a common site is a ________ muscle.

A) pennate
B) circular
C) parallel
D) convergent
E) divergent

Question 17

Each of the following terms is used to describe the shape of a muscle, except

A) pectinate.
B) piriformis.
C) hallucis.
D) splenius.
E) trapezius.

Question 18

A muscle that assists the muscle that is primarily responsible for a given action is a(n)

A) agonist.
B) antagonist.
C) synergist.
D) originator.
E) levator.

Question 19

Which of the following is not a pennate muscle?

A) rectus femoris
B) extensor digitorum
C) deltoid
D) pectoralis
E) None of the above-all are pinnate.

Question 20

Muscles with fibers that run parallel to the long axis of the body are called

A) lateralis.
B) transversus.
C) rectus.
D) obliquus.
E) medialis.

Question 21

Superficial muscles that position or stabilize an organ are called

A) internus.
B) extrinsic.
C) profundus.
D) intrinsic.
E) externus.

Question 22

Figure 10-1 Major Anterior Skeletal Muscles
Use Figure 10-1 to answer the following questions:
Identify the muscle labeled "25."

A) rectus femoris
B) biceps femoris
C) adductor longus
D) risorius
E) sartorius

Question 23

Figure 10-1 Major Anterior Skeletal Muscles
Use Figure 10-1 to answer the following questions:
Identify the muscle labeled "27."

A) rectus femoris
B) gastrocnemius
C) soleus
D) gracilis
E) biceps femoris

Question 24

Figure 10-2 Major Posterior Skeletal Muscles
Use Figure 10-2 to answer the following questions:
Identify the muscle labeled "7."

A) anconeus
B) extensor carpi ulnaris
C) extensor digitorum
D) pronator teres
E) brachioradialis

Question 25

Which of these phrases most aptly describes "muscle insertion"?

A) broad tendon sheet
B) connective tissue that surrounds a single muscle fiber
C) tendon attachment that doesn't move
D) tendon attachment that moves
E) connective tissue that surrounds an entire muscle

Question 26

Muscles with fibers that run perpendicular to the long axis of the body are called

A) lateralis.
B) transversus.
C) rectus.
D) oblique.
E) medialis.

Question 27

Muscles located close to the midline of the body may be called

A) rectus.
B) distalis.
C) proximal.
D) medialis.
E) lateralis.

Question 28

Figure 10-1 Major Anterior Skeletal Muscles
Use Figure 10-1 to answer the following questions:
Identify the muscle labeled " 1."

A) trapezius
B) deltoid
C) sternocleidomastoid
D) temporalis
E) pectoralis major

Question 29

Muscles including the term capitis would be found within or attached to the

A) head.
B) neck.
C) thorax.
D) abdomen.
E) groin.

Question 30

Figure 10-2 Major Posterior Skeletal Muscles
Use Figure 10-2 to answer the following questions:
Identify the muscle labeled "12."

A) soleus
B) gastrocnemius
C) sartorius
D) tibialis posterior
E) peroneus longus

Question 31

Figure 10-2 Major Posterior Skeletal Muscles
Use Figure 10-2 to answer the following questions:
Identify the muscle labeled "1 1."

A) gracilis
B) semitendinosus
C) gluteus medius
D) biceps femoris
E) adductor magnus

Question 32

Figure 10-2 Major Posterior Skeletal Muscles
Use Figure 10-2 to answer the following questions:
Identify the muscle labeled "6."

A) trapezius
B) tensor fasciae latae
C) latissimus dorsi
D) adductor magnus
E) rhomboid major

Question 33

Figure 10-1 Major Anterior Skeletal Muscles
Use Figure 10-1 to answer the following questions:
Identify the muscle labeled "1 1."

A) rectus anterior
B) vastus lateralis
C) soleus
D) serratus anterior
E) tibialis anterior

Question 34

Muscles located entirely within an organ are called

A) internus.
B) extrinsic.
C) profundus.
D) intrinsic.
E) externus.

Question 35

Which of the following is not primarily a muscle of facial expression?

A) buccinator
B) depressor labii
C) risorius
D) masseter
E) mentalis

Question 36

Muscles that are long and round in cross section are termed

A) longus.
B) teres.
C) longissimus.
D) maximus.
E) brevis.

Question 37

Figure 10-1 Major Anterior Skeletal Muscles
Use Figure 10-1 to answer the following questions:
Identify the muscle labeled "6."

A) biceps brachii
B) brachialis
C) triceps brachii
D) pronator teres
E) deltoid

Question 38

Deep muscles are called

A) superficialis.
B) extrinsic.
C) profundus.
D) intrinsic.
E) externus.

Question 39

Muscles visible at the body surface are often called

A) internus.
B) rectus.
C) profundus.
D) intrinsic.
E) superficialis.

Question 40

Figure 10-2 Major Posterior Skeletal Muscles
Use Figure 10-2 to answer the following questions:
Identify the muscle labeled "2."

A) deltoid
B) teres major
C) sternocleidomastoid
D) trapezius
E) anconeus

Question 41

The mentalis muscle inserts on the

A) orbicularis oris.
B) skin of the chin.
C) angle of the mouth.
D) hyoid bone.
E) skin around the eyelids.

Question 42

A muscle that inserts on the body of the mandible is probably involved in

A) kissing.
B) blowing.
C) chewing.
D) frowning.
E) spitting.

Question 43

Medial rotation of the eyeball is performed by the ________ muscle.

A) inferior rectus
B) lateral rectus
C) medial rectus
D) superior rectus
E) inferior oblique

Question 44

The ________ covers the anterior surface of the neck.

A) buccinator
B) epicranium
C) occipitofrontalis
D) orbicularis oris
E) platysma

Question 45

The axial muscles of the head and neck are assigned to one of the following functional groups, except

A) the muscles of facial expression.
B) the muscles of vocal expression.
C) the muscles of the tongue.
D) the muscles of the eye.
E) the muscles of mastication.

Question 46

Which eye muscle sends its tendon of origin through a pulley or trochlea before inserting on the globe?

A) superior rectus
B) superior oblique
C) lateral rectus
D) inferior rectus
E) inferior oblique

Question 47

The origin of the frontal belly of the occipitofrontalis muscle is the

A) mandible.
B) frontal bone.
C) occipital bone.
D) epicranial aponeurosis.
E) forehead.

Question 48

The zygomaticus major muscle acts to

A) move the external ear.
B) purse the lips.
C) depress the lower lip.
D) retract and elevate the corner of the mouth.
E) close the eye.

Question 49

The anterior muscle that inserts widely on the periosteum of the mandible and the skin of the cheek is the

A) temporalis.
B) masseter.
C) lateral pterygoideus.
D) medial pterygoideus.
E) platysma.

Question 50

The muscles of the head and neck function in

A) nonverbal communication.
B) feeding.
C) controlling the eyes.
D) all of the above
E) none of the above

Question 51

Which of the following describes the action of the corrugator supercilii?

A) depresses the lips
B) purses the lips
C) wrinkles the brow
D) elevates the mandible
E) moves the external ear

Question 52

The ________ muscle is the strongest jaw muscle, acting to elevate the mandible and close the jaw.

A) lateral pterygoid
B) digastric
C) pterygoid
D) medial pterygoid
E) masseter

Question 53

The procerus originates on the

A) angle of the mouth.
B) skin around the eyelids.
C) lateral nasal cartilages.
D) orbicularis oris.
E) sides of the tongue.

Question 54

The ________ allows you to look up.

A) inferior rectus
B) medial rectus
C) lateral rectus
D) superior rectus
E) inferior oblique

Question 55

Tom, a trumpet player, asks you which muscles he should develop in order to be a better trumpeter. What would you tell him?

A) the masseter and buccinator
B) the buccinator and orbicularis oris
C) the orbicularis oris and risorius
D) the risorius and zygomaticus
E) the levator labii and mentalis

Question 56

Which of the following is not an extrinsic eye muscle?

A) inferior rectus
B) rectus abdominis
C) lateral rectus
D) medial rectus
E) superior oblique

Question 57

The "kissing muscle" that purses the lips is the

A) zygomaticus.
B) orbicularis oris.
C) buccinator.
D) levator labii.
E) procerus.

Question 58

The ________ muscle allows you to look down.

A) inferior rectus
B) medial rectus
C) lateral rectus
D) superior rectus
E) inferior oblique

Question 59

The eye muscles include which of the following muscles?

A) medial rectus
B) inferior rectus
C) superior oblique
D) inferior oblique
E) all of the above

Question 60

The temporalis muscle passes through the

A) alveolar processes of the maxillae and mandible.
B) tendinous band around the optic foramen.
C) galea aponeurotica.
D) zygomatic arch.
E) fascia surrounding the submandibular salivary gland.

Question 61

Which of the following does not originate or insert on the hyoid bone?

A) digastric
B) geniohyoid
C) omohyoid
D) sternohyoid
E) sternothyroid

Question 62

The muscle that elevates the tongue is the

A) genioglossus.
B) hyoglossus.
C) palatoglossus.
D) styloglossus.
E) digastric.

Question 63

During abdominal surgery, the surgeon makes a cut lateral to the linea alba. The muscle that would be cut is the

A) digastric.
B) external abdominal oblique.
C) rectus abdominis.
D) scalenus.
E) splenius.

Question 64

Each of the following muscles is involved in the process of chewing or manipulating food in the mouth, except the

A) masseter.
B) temporalis.
C) pterygoid.
D) omohyoid.
E) genioglossus.

Question 65

Which of the following muscles is found within the pelvic floor?

A) ischiocavernosus
B) deep transverse perineal
C) bulbospongiosus
D) coccygeus
E) all of the above

Question 66

The iliac crest is the origin of the

A) quadratus lumborum.
B) iliocostalis cervicis.
C) longissimus cervicis.
D) semispinalis capitis.
E) splenius.

Question 67

Which of the following is the origin of the bulbospongiosus?

A) ischial spine
B) inferior ischial ramus
C) linea alba and pubis
D) coccyx
E) collagen sheath at the base of the clitoris or penis

Question 68

Muscular walls of the thorax and abdomen are composed of

A) spinal erector muscles.
B) muscles of mastication.
C) oblique and rectus muscles.
D) glossal muscles.
E) pectoralis muscles.

Question 69

Which of the following is a spinal flexor?

A) quadratus lumborum
B) longus capitis
C) longus colli
D) all of the above
E) none of the above

Question 70

The scalenes have their origin on the

A) transverse and costal processes of cervical vertebrae.
B) inferior border of the previous rib.
C) superior border of the next rib.
D) cartilages of the ribs.
E) thoracodorsal fascia and iliac crest.

Question 71

The sternocleidomastoid inserts on the

A) occipital bone.
B) clavicle.
C) mastoid process.
D) sternum.
E) none of the above

Question 72

Pam's daughter is born cross-eyed. As she grows, the problem does not become any better. Her physician suggests cutting an eye muscle to bring the eyes into a more normal position. Which muscle will he cut?

A) inferior rectus
B) lateral rectus
C) medial rectus
D) superior rectus
E) superior oblique

Question 73

Which of the following muscles compresses the abdomen?

A) internal oblique
B) external oblique
C) rectus abdominis
D) transverse abdominis
E) all of the above

Question 74

In assessing a stroke patient, you ask her to stick out (protract) her tongue. You note that it deviates to one side. You suspect that damage to the neural control of the ________ muscle has occurred.

A) hyoglossus
B) genioglossus
C) palatoglossus
D) styloglossus
E) none of the above

Question 75

The muscle that originates on the superior surface of the pubis around the symphysis is the

A) internal oblique.
B) external oblique.
C) rectus abdominis.
D) transversus abdominis.
E) scalene.

Question 76

Damage to which of the following muscles would interfere most with the ability to breathe?

A) pterygoid
B) rectus abdominis
C) intercostals
D) platysma
E) digastric

Question 77

Which of the following describes the action of the digastric muscle?

A) elevates the larynx
B) elevates the larynx and depresses the mandible
C) depresses the larynx
D) depresses and retracts the tongue
E) elevates the mandible

Question 78

Which of the following muscles has its origin on the hyoid and inserts on the tongue?

A) hypoglossus
B) lateral pterygoideus
C) sternohyoid
D) thyrohyoid
E) geniohyoid

Question 79

Which of the following muscles has its insertion on the xiphoid process of the sternum?

A) internal oblique
B) external intercostal
C) rectus abdominis
D) internal intercostal
E) scalene

Question 80

The ________ extends the neck.

A) spinalis thoracis
B) splenius capitis
C) spinalis cervicis
D) splenius
E) splenius cervicis